What type of cracks are these?
What type of cracks are these?
(OP)
The piece of plate in the photo came from a Sec. I steam boiler. This is a section of the longitudinal seam. My questions are: what kind of cracks are these and what caused them?





RE: What type of cracks are these?
Do you have access to a welding inspector/engineer?
RE: What type of cracks are these?
RE: What type of cracks are these?
RE: What type of cracks are these?
I would locally excavate the cracks to removal and perform weld repairs using Welding Method 1 of the NBIC. This is a straight forward repair in these kinds of steam drums. Make sure that when weld repairs are performed you blend grind the weld toes of the repair weld flush with the drum ID surface to avoid undercut and crevices.
RE: What type of cracks are these?
RE: What type of cracks are these?
RE: What type of cracks are these?
RE: What type of cracks are these?